64988160 has 88 divisors (see below), whose sum is σ = 207909696. Its totient is φ = 17326080.

The previous prime is 64988153. The next prime is 64988171. The reversal of 64988160 is 6188946.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13245 + ... + 17475.

Almost surely, 2^64988160 is an apocalyptic number.

64988160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64988160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103954848).

64988160 is an abundant number, since it is smaller than the sum of its proper divisors (142921536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64988160 is a wasteful number, since it uses less digits than its factorization.

64988160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 64988160 is about 8061.5234292285. The cubic root of 64988160 is about 402.0481613544.

The spelling of 64988160 in words is "sixty-four million, nine hundred eighty-eight thousand, one hundred sixty".